99666-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99666-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,6,6 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99666-55:
(7*9)+(6*9)+(5*6)+(4*6)+(3*6)+(2*5)+(1*5)=204
204 % 10 = 4
So 99666-55-4 is a valid CAS Registry Number.
99666-55-4Relevant articles and documents
Study on the Synthesis of Phytuberin from Elemol
Kido, Fusao,Kitahara, Haruo,Yoshikoshi, Akira
, p. 1478 - 1481 (2007/10/02)
Phytuberin lactone (14a) has been synthesized starting from elemol (2).The known indenone 5,which was prepared from 2 by a modified procedure, was autoxidized to give α-hydroxy ketone 6a.Reaction of 6a with the lithium dianion of acetic acid followed by a
